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A removable assembly adapted to be inserted into a shell defining a pair of grooves includes a support tray, a panel perpendicular to the support tray and defining a pair of gaps and a pair of handle assemblies. Each of the handle assemblies includes a trigger, a shiftable plate and a spring. The tr

A removable assembly adapted to be inserted into a shell defining a pair of grooves includes a support tray, a panel perpendicular to the support tray and defining a pair of gaps and a pair of handle assemblies. Each of the handle assemblies includes a trigger, a shiftable plate and a spring. The trigger pivots to the support tray. The shiftable plate engages with the trigger to rotate together with the trigger or disengage from the trigger under an external force to keep the support tray immovable during rotating the trigger. The shiftable plate includes an urging portion used to urge an outer surface of the shell to move the support tray out from the shell. The spring is urged between the panel and the shiftable plate to ensure the shiftable plate engage with the trigger.

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1. A removable assembly adapted to be inserted into a shell defining a pair of grooves in a pair of opposite inner walls of the shell respectively, the removable assembly comprising: a support tray;a panel perpendicular to the support tray and defining a pair of gaps; anda pair of handle assemblies

1. A removable assembly adapted to be inserted into a shell defining a pair of grooves in a pair of opposite inner walls of the shell respectively, the removable assembly comprising: a support tray;a panel perpendicular to the support tray and defining a pair of gaps; anda pair of handle assemblies used to insert or remove the support tray into or from the shell, each of the pair of handle assemblies comprising:a trigger passing through the corresponding gap of the panel and pivoted to the support tray, the trigger used to match with the corresponding groove to insert the support tray and the panel into the shell;a shiftable plate partly received in the corresponding gap to engage with the trigger to rotate together with the trigger or disengage from the trigger under an external force to keep the support tray immovable during rotating the trigger, the shiftable plate comprising an urging portion used to urge an outer surface of the shell to move the support tray out from the shell; anda spring urged between the panel and the shiftable plate to ensure the shiftable plate engaging with the trigger. 2. The removable assembly as claimed in claim 1, wherein the panel defines two pair of slots, each pair of the slots corresponding and in communication with one of the gaps, and a positioning post is formed between each pair of the slots to position the spring of the corresponding handle assembly. 3. The removable assembly as claimed in claim 2, wherein each of the shiftable plates comprises a positioning edge and defines a positioning hole, and each of the triggers comprises at least one positioning wall and a pin, wherein the shiftable plates engage with the trigger by the positioning edges matching the positioning wall and the pins positioned in the positioning holes. 4. The removable assembly as claimed in claim 3, wherein each of the triggers comprises a hook overlapping the support tray and a handle, the hook and the handle respectively located two sides of the panel, wherein the hook is used to match with the corresponding groove to insert the support tray and the panel into the shell. 5. The removable assembly as claimed in claim 4, wherein the pair of gaps are respectively contiguous with the support tray, and each of the pair of gaps defines a second opening respectively towards two opposite sides of the panel. 6. The removable assembly as claimed in claim 5, wherein the panel comprises a plurality of ports, when the support tray and the panel are inserted into the shell, the handles of the triggers shelter some of the ports. 7. The removable assembly as claimed in claim 6, wherein the panel defines a pair of fixing holes to match a pair of screws screwed in the shell. 8. The removable assembly as claimed in claim 7, wherein the support tray comprises a pair of stopper to limit rotation of the trigger when the trigger is rotated to an open condition. 9. A communication device, comprising: a shell, defining a pair of grooves in a pair of opposite inner walls of the shell respectively; anda removable assembly, comprising: a support tray;a panel perpendicular to the support tray and defining a pair of gaps; anda pair of handle assemblies used to insert or remove the support tray into or from the shell, each of the pair of handle assemblies comprising:a trigger passing through the corresponding gap of the panel and pivoted to the support tray, the trigger used to match with the corresponding groove to insert the support tray and the panel into the shell;a shiftable plate partly received in the corresponding gap to engage with the trigger to rotate together with the trigger or disengage from the trigger under an external force to keep the support tray immovable during rotating the trigger, the shiftable plate comprising an urging portion used to urge an outer surface of the shell to move the support tray out from the shell; anda spring urged between the panel and the shiftable plate to ensure the shiftable plate engaging with the trigger. 10. The communication device as claimed in claim 9, wherein the panel defines two pair of slots, each pair of the slots corresponding and in communication with one of the gaps, and a positioning post is formed between each pair of the slots to position the spring of the corresponding handle assembly. 11. The communication device as claimed in claim 10, wherein each of the shiftable plates comprises a positioning edge and defines a positioning hole, and each of the triggers comprises at least one positioning wall and a pin, wherein the shiftable plates engage with the trigger by the positioning edges matching the positioning wall and the pins positioned in the positioning holes. 12. The communication device as claimed in claim 11, wherein each of the triggers comprises a hook overlapping the support tray and a handle, the hook and the handle respectively located two sides of the panel, wherein the hook is used to match with the corresponding groove to insert the support tray and the panel into the shell. 13. The communication device as claimed in claim 12, wherein the pair of gaps are respectively contiguous with the support tray, and each of the pair of gaps defines a second opening respectively towards two opposite sides of the panel. 14. The communication device as claimed in claim 13, wherein the panel comprises a plurality of ports, when the support tray and the panel are inserted into the shell, the handles of the triggers shelter some of the ports. 15. The communication device as claimed in claim 14, wherein the panel defines a pair of fixing holes to match a pair of screws screwed in the shell. 16. The communication device as claimed in claim 15, wherein the support tray comprises a pair of stopper to limit rotation of the trigger when the trigger is rotated to an open condition.